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igl/python/CMakeLists.txt
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CMake

cmake_minimum_required(VERSION 2.8.12)
project(pyigl)
# Force a specific python version
# set(PYTHON_LIBRARIES "D:/Python34/libs/python34.lib")
# set(PYTHON_INCLUDE_DIR "D:/Python34/include")
# Force a specific python version
# set(PYTHON_LIBRARIES "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/libpython3.5m.dylib")
# set(PYTHON_INCLUDE_DIR "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/include/python3.5m")
set(Python_ADDITIONAL_VERSIONS 3.4 3.5 3.6)
find_package(PythonLibs REQUIRED)
find_package(PythonInterp REQUIRED)
string(TOUPPER "${CMAKE_BUILD_TYPE}" U_CMAKE_BUILD_TYPE)
if(UNIX)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -fPIC")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
if(NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden -flto")
endif()
endif()
## include pybind
set(PYBIND11_DIR ${PROJECT_SOURCE_DIR}/../external/pybind11 CACHE PATH "Path to pybind11")
add_subdirectory(${PYBIND11_DIR} pybind11)
## include libigl
option(LIBIGL_USE_STATIC_LIBRARY "Use LibIGL as static library" OFF)
option(LIBIGL_WITH_OPENGL "Use viewer" ON)
option(LIBIGL_WITH_OPENGL_GLFW "Use GLFW" ON)
option(LIBIGL_WITH_NANOGUI "Use Nanogui menu" OFF)
option(LIBIGL_WITH_CGAL "Use CGAL" OFF)
option(LIBIGL_WITH_BOOLEAN "Use Cork boolean" OFF)
option(LIBIGL_WITH_COMISO "Use CoMiso" ON)
option(LIBIGL_WITH_EMBREE "Use Embree" ON)
option(LIBIGL_WITH_LIM "Use LIM" ON)
option(LIBIGL_WITH_MATLAB "Use Matlab" OFF)
option(LIBIGL_WITH_MOSEK "Use MOSEK" OFF)
option(LIBIGL_WITH_PNG "Use PNG" ON)
option(LIBIGL_WITH_TETGEN "Use Tetgen" ON)
option(LIBIGL_WITH_TRIANGLE "Use Triangle" ON)
option(LIBIGL_WITH_XML "Use XML" ON)
option(LIBIGL_WITH_PYTHON "Use Python" ON)
option(LIBIGL_WITH_COPYLEFT "Use Copyleft" ON)
## libigl
if(NOT TARGET igl::core)
list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/../shared/cmake")
include(libigl)
endif()
## Prepare the python library
pybind11_add_module(pyigl
python_shared.cpp
modules/py_vector.cpp
py_igl.cpp
py_doc.cpp
)
## Add dependencies
target_include_directories(pyigl PUBLIC igl::core)
## Optional modules
if(LIBIGL_WITH_OPENGL_GLFW)
target_sources(pyigl PRIVATE "modules/py_igl_opengl_glfw.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_GLFW)
target_link_libraries(pyigl PUBLIC igl::opengl igl::opengl_glfw)
endif()
if(LIBIGL_WITH_COMISO)
target_sources(pyigl PRIVATE "modules/copyleft/py_igl_comiso.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_COMISO)
target_link_libraries(pyigl PUBLIC igl::comiso)
endif()
if(LIBIGL_WITH_TETGEN)
target_sources(pyigl PRIVATE "modules/copyleft/py_igl_tetgen.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_TETGEN)
target_link_libraries(pyigl PUBLIC igl::tetgen)
endif()
if(LIBIGL_WITH_EMBREE)
target_sources(pyigl PRIVATE "modules/py_igl_embree.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_EMBREE)
target_link_libraries(pyigl PUBLIC igl::embree)
endif()
if(LIBIGL_WITH_TRIANGLE)
target_sources(pyigl PRIVATE "modules/py_igl_triangle.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_TRIANGLE)
target_link_libraries(pyigl PUBLIC igl::triangle)
endif()
if(LIBIGL_WITH_CGAL)
target_sources(pyigl PRIVATE "modules/copyleft/py_igl_cgal.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_CGAL)
target_link_libraries(pyigl PUBLIC igl::cgal)
endif()
if(LIBIGL_WITH_COPYLEFT)
target_sources(pyigl PRIVATE "modules/copyleft/py_igl_copyleft.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_COPYLEFT)
endif()
if(LIBIGL_WITH_PNG)
target_sources(pyigl PRIVATE "modules/py_igl_png.cpp")
target_compile_definitions(pyigl PUBLIC -DPY_PNG)
target_link_libraries(pyigl PUBLIC igl::png)
endif()
set_target_properties(pyigl PROPERTIES PREFIX "")
set_target_properties(pyigl PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR})
# Copy the nanogui bindings
#get_target_property(NANOGUI_LIB nanogui_python LOCATION)
#file(COPY ${NANOGUI_LIB} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/../)
if(WIN32)
if(MSVC)
# Enforce size-based optimization and link time code generation on MSVC (~30% smaller binaries in experiments)
set_target_properties(pyigl PROPERTIES COMPILE_FLAGS "/Os /GL")
set_target_properties(pyigl PROPERTIES LINK_FLAGS "/LTCG")
endif()
# .PYD file extension on Windows
set_target_properties(pyigl PROPERTIES SUFFIX ".pyd")
# Link against the Python shared library
# message(FATAL_ERROR ${PYTHON_LIBRARY})
# target_link_libraries(igl ${PYTHON_LIBRARY})
target_link_libraries(pyigl ${PYTHON_LIBRARIES})
elseif(UNIX)
# It's quite common to have multiple copies of the same Python version
# installed on one's system. E.g.: one copy from the OS and another copy
# that's statically linked into an application like Blender or Maya.
# If we link our plugin library against the OS Python here and import it
# into Blender or Maya later on, this will cause segfaults when multiple
# conflicting Python instances are active at the same time.
# Windows does not seem to be affected by this issue. The solution for Linux
# and Mac OS is simple: we just don't link against the Python library. The
# resulting shared library will have missing symbols, but that's perfectly
# fine -- they will be resolved at import time.
# .SO file extension on Linux/Mac OS
set_target_properties(pyigl PROPERTIES SUFFIX ".so")
#Enable flag if undefined symbols appear on pyigl module import to get notified about the missing symbols at link time
option(CHECK_UNDEFINED "Check for undefined symbols" OFF)
# Strip unnecessary sections of the binary on Linux/Mac OS
if(APPLE)
set_target_properties(pyigl PROPERTIES MACOSX_RPATH ".")
if(NOT CHECK_UNDEFINED)
set_target_properties(pyigl PROPERTIES LINK_FLAGS "-undefined dynamic_lookup -dead_strip")
endif()
if(NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
add_custom_command(TARGET pyigl POST_BUILD COMMAND strip -u -r ${PROJECT_SOURCE_DIR}/pyigl.so)
endif()
else()
if(CHECK_UNDEFINED)
target_link_libraries(pyigl ${PYTHON_LIBRARIES})
set_target_properties(pyigl PROPERTIES LINK_FLAGS "-Wl,--no-undefined")
endif()
if(NOT ${U_CMAKE_BUILD_TYPE} MATCHES DEBUG)
add_custom_command(TARGET pyigl POST_BUILD COMMAND strip ${PROJECT_SOURCE_DIR}/pyigl.so)
endif()
endif()
endif()
if(LIBIGL_WITH_PYTHON AND LIBIGL_WITH_NANOGUI)
# Copy the nanogui python lib after compilation
get_target_property(NANOGUI_LIB nanogui-python LOCATION)
add_custom_target(copy ALL)
add_custom_command(
TARGET copy
COMMAND ${CMAKE_COMMAND} -E copy ${NANOGUI_LIB} ${PROJECT_SOURCE_DIR}
)
add_dependencies(copy pyigl)
endif()